DavidR
8
First what version of avast do you have, the latest version is 6.0.1203 (very recently released), so if you don’t have that do a manual program update. It may be that the BSOD issue is resolved and no point in chasing it if you haven’t got the latest version.
What AV did you have before installing avast and how was it removed ?
Whilst I’m not convinced this file C:Windows\Prefetch\AgAppLaunch.db is a problem Possible FP (see #### below), I would say it would be worth emptying the prefetch folder, this should be rebuilt over the next few boots.
Before you clear the prefetch folder:
Send the sample/s to avast as a Undetected Malware:
Open the chest and right click in the Chest and select Add, navigate to where you have the sample and add it to the chest (see image). Once in the chest, right click on the file and select ‘Submit to virus lab…’ complete the form and submit, the file will be uploaded during the next update. Note: manually adding to the chest doesn’t remove them from the original location, so they still have to be dealt with in that location.
Note after Pondus's post:
Since the prefetch folder essentially contains temporary files, I rather doubt that this/these will be digitally signed or even have company information.